Home / 8,816.40-12,159.36-6,426.36

Finding the Fourth Proportional to 8,816.40, 12,159.36 and 6,426.36

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Solution

The fourth proportional to 8,816.40, 12,159.36 and 6,426.36 is: 8,863.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.40 : 12,159.36 = 6,426.36 : x
  2. Step 2: Convert to fraction form
    8,816.40/12,159.36 = 6,426.36/x
  3. Step 3: Cross multiply
    8,816.40x = 12,159.36 × 6,426.36
  4. Step 4: Simplify right side
    8,816.40x = 78,140,424.73
  5. Step 5: Solve for x
    x = 78,140,424.73/8,816.40
  6. Step 6: Final answer
    x = 8,863.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.